<h1>添加用户</h1>
<form action="/admin/users" method="post">
  <div class="mb-3">
    <label for="username" class="form-label">用户名</label>
    <input type="text" class="form-control" id="username" name="username" />
  </div>
  <div class="mb-3">
    <label for="username" class="form-label">用户名</label>
    <input type="text" class="form-control" id="username" name="username" />
  </div>
  <div class="mb-3">
    <label for="username" class="form-label">用户名</label>
    <input type="text" class="form-control" id="username" name="username" />
  </div>
  <div class="mb-3">
    <label for="username" class="form-label">用户名</label>
    <input type="text" class="form-control" id="username" name="username" />
  </div>
  <div class="mb-3">
   <button type="submit" class="">保存</button>
  </div>
</form>